I have confirmed it NOT to be the ECU. It is coming from a little gold box just to the right of the ECU! When I unplug a relay in the engine compartment labeled "ENGINE" the buzzing stops. Or if I disconnect one of the wiring harnesses in the console area it will also stop. I have no idea what is causing this or even what that little gold box is.. Can anyone please help me out. I am at a loss. Thanks, Chris.